Door or gate closer



May 5, 1931.A A. M. FERRIN 1,804,385

DOOR OR GATE CLOSER Filed sept. 1;, 1929.

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PatentedvrMay 5, 19131 Y forro s'rnrs Aralar FFicrEf ARTHUR M. FERRIN,OF RED ROCK, MONTANA Y' DOOR OR GATE CLOSER Appneation med september 11,192e. serial No. 391,866.y

The present invention relates to door or gate closers and the primaryyobject of the invention is to provide an improved door `closer of suchconstruction as to remain operative for an indefinite period of time.

A further,v object of the'iiivention is to provide a door closerpermitting of the door be? ing easily opened against tension of theycloser and yet insuring closing of the door.

A further objectof'this invention is to providea door closer embodying aconstruction whereby the spring is only distended for a short distanceand thus allowing the spring` rto retain its tension for an indefiniteperiod of time.

provide an improved door closer of simple y construction, and one whichwill insure clos-r ing of .the door when swung to its fully openedposition.

O ther objects and advantages oit the invention will be apparent duringthe course of the following detailed description, taken in connectionwith the accompanying drawings, forming a part of this specification andin which drawings, y y

Figure 1 is a view looking at the inner side of a screen door equippedwith the improved closer.

`Figure 2is a View showing the door in the fully open position.

Figure 3 is anenlarged horizontal section taken through the door casingand clearly illustrating the manner in which the closer is applied. lFigure 4 is a view showing a slightly modified formof closer.

Figure 5 is a view showing the door in its fully open'position, the doorbeing provided with the form of closer shown in Figure 4.

Figure 6 is a ragme'ntary'horizontal section through the door casing andshowing the form of closer illustrated in Figures 4 and 5.

above orfbelow the' staple15.

Referring to the drawings in details, and wherein similar referencecharacters designate corresponding parts throughout the several views,and with particular reference to Figures 1, 2 and 3, the letter Adesignates a door casing, B a'screen door hingedfto the casing A and C acloser for the door B.

The door B vmaybe of any construction kand inthe example shownincludes'hingeand 'Avlatchjpstiles5 and respectively and a rail7. ThedoorB may be hinged by the stile 5 to the jamb kSof the casing A.

'Referring now to the speciiic construction of the jcloser C, the sainecomprises a coil spring 10 having a hook provided at each end thereof,the hook at one end of the `spring being connected in the eye of a screweye 11 threaded into the vrail 7, adjacent the' latch stile 6. Connectedin the eyeatv the opposite end of the coil spring 10is a pulleyincludingayoke 12 infwhich is mounted a sheave 13.

ber v14V which may consist of a cord',` chain or cable, one end 'ofwhich is attached as by means of a stapleV 15'to the hinge stile 5.tached to the opposite end of the flexible meniber 14 is a leaf springor flat spring strip 16 `having apertured ends, one end of whichislintended. to carry ascreweye 17 for attachment'to the jamb 8 k'at anelevation slightly Thei'lat spring strip is cfa length greater thanthewidth of the hinge stile 5 and veX- tends with one latiface confrontingthe inner surface ofthe'hinge stile. The ystrip y16 is` secured by theeye`17 in spaced relation from the stile 5 'and atan elevation on thejamb 8 Trained about the sheave 13 is a Vflexible inein- A below thestaple 15 so-that when the door is Y y swung open theistrip 16willengage the hinge vstile below the staple 15. By observing Figure 3 itwillbe seen that the tension of theV coil spring 10 will norniallyholdthe door closed.

1Nhen the door B is swungto the position fas shown'in Figure 2, the coilspring 10v is dist-ended and the flat spring strip 16 is sprung aboutthe corner edge of the hinge stile. The tendency of the spring strip toreturnv to a straight Vposition will exert a lateral pull on the cord 14away from the rail full open lil Which the closer is applied.'`

7 and impart -initial movement to the door, after which the coil spring10 Will act to fully close the door. It Will be observed that the springl0 is not bent around the edge of the hinge stile when the door is open,but is distended in a straight line along the rail 7. The Hat striplengaging the hinge stile will have no tendency to mar the stile as inthe case Wherethe coil springs are connected between the door and doorcasing jamb. Owing to the pulley being Vconnected.. to one end of thecoil spring, the spring Will only be stretched for a very short distanceand thus the spring will retain its tension for an indeiinite period oftime. A

The tension of the coil spring 10 may be variedthrough lengtheningthei'lexible cord Vor cable 14, and this simple means will permit of thecloser being readily appliedto doors of Vvarious Widths. While 'thecoilspring has been shown attached to the rail 7 it `Will readily beapparent the eye 11 may beV connected at any location alongvthe latchstileV 6. The closer may also be connected diagonallyacross the dooriffso desired, so-that the closer Will also act Vas means for preventingsagging of the door.

Y In Figures 4, and 6 a closer has been shown Where a quicker closingofthe .door is desired, and with this form of closer the flexible cordor cable 14 and the pulley are removed and one end ofthe fiat springstrip connected directly to' one end of. the coil Without departing fromthe spirit of the invention or the scope of the claims.

I claim:

l. The combination with a door and its casing, of a coil spring havingone end attached to the door adjacent the free edge of the door, asheave carried-by the free end of the spring, and a flexible pull cordtrained over the sheave With one end attached to the door and having itsopposite end connected with a .ja'mb .piece of said casing.

2. In a door closer the combination With a door including a hinge stile,and a casing for the door.. including a jamb piece, of a coil springattached at' one end to the door adjacent the free edge of the door, va.pulley carried by the free end of the spring, a pull cord trained overthe pulleyA and having one end attached to the hinge stile, a Hat springstrip connected at one end to the free end of the pull cord andextendingacross the hinge stile, and means connecting the opposite endof the strip to said jamb at a location below the point of attachment of.the pullcord to the hinge stile.

ARTHUR M. FERRIN.

spring. In Figures 4, 5- and l6, 10 designates the coil springconnected" at one end to `the rail 7 and having the hook at itsoppositeend connected With one end of the leaf spring. or flat springstrip 16', the opposite end ofthe strip being connected lby the screweye 17 to the amb 8. Vith thisffoiin ofcloser the coil spring Will bedistended for av greater length than thatof the spring shown in Figuresl, 2 and 3, but Will be distendediin a straight line along the rail 7.The'strip -16 Will be sprung around the edge of the stile 5 and thenormal tendency of the Y strip Yto straightenaoutwill impartinitialclosing to the door.' l

In both illustrations of the invention it Will rb'e'lseenthat thesprings arel distended in a straight line and that the spring strips aresprung `about the hinge stiler ofthe d'oorfor .initial closingnmovementof the door., Y

Froin'the foregoing-it- Ywill bejapparent that a novel and improvedconstruction or-closers of this kind has been an operative condition fora long period of time. It Will ialsobe apparent that a `novelconstruction Yhas'been* disclosed permitting attachment to variousssizesof doors, and aconstruction Whichwill not marthe door to Changes-,indetail may be made to theiforms ot.- invention herein shown anddescribed,

providedl which vwill be 'eliicient in Voperation and remain in iio

